Recently, I tried to contact E-Ink, hoping to get information for an architectural use of some of their supposed products. I couldn't get any real information, conceptual pricing, development kit, summary of capabilities, or anything useful out of their sales staff. I repeatedly explained, I am a well capitalized entrepreneur wanting to incorporate some of their tech into my properties at scale, and that I have a development and construction team ready to work to design and integrate a product for various uses. I my mind, I should be a good potential tech development partner, ready to waste money on their tech. I couldn't get anything useful out of them. I am now convinced that outside of the very basic amazon kindle reader screen type displays, that the technology does not exist as promised or marketed.